| ASTROBLEME | • astrobleme n. (Geology) A pit-like structure created by an impacting meteoroid, asteroid or comet. • ASTROBLEME n. the wound left by a meteorite strike. |
| ASTROCYTES | • astrocytes n. Plural of astrocyte. • ASTROCYTE n. a much-branched, star-shaped neuroglia cell. |
| ASTROCYTIC | • astrocytic adj. Of or pertaining to the astrocytes. • ASTROCYTIC adj. relating to an astrocyte, a much-branched, star-shaped neuroglia cell. |
| ASTRODOMES | • astrodomes n. Plural of astrodome. • ASTRODOME n. a stadium with a domed roof. |
| ASTROFELLS | • ASTROFELL n. (Spenser) an unidentified bitter starlike plant, possibly aster, also ASTROPHEL. |
| ASTROHATCH | • ASTROHATCH n. a domed window in an aircraft for astronomical observations. |
| ASTROLABES | • astrolabes n. Plural of astrolabe. • ASTROLABE n. a compact instrument used to observe and calculate the position of celestial bodies before the invention of the sextant. |
| ASTROLATRY | • astrolatry n. The worship of the stars. • ASTROLATRY n. worship of stars. |
| ASTROLOGER | • astrologer n. One who studies or practices astrology. • ASTROLOGER n. one who affects to tell fortunes from the stars, also ASTROLOGIST. |
| ASTROLOGIC | • astrologic adj. Archaic form of astrological. • ASTROLOGIC adj. related to astrology, also ASTROLOGICAL. |
| ASTROMETRY | • astrometry n. (Astronomy) The branch of astronomy that deals with the measurement of the positions and motions of… • ASTROMETRY n. the art of making measurements among the stars, or of determining their relative magnitudes. |
| ASTRONAUTS | • astronauts n. Plural of astronaut. • ASTRONAUT n. a person engaged in space travel. |
| ASTRONOMER | • astronomer n. One who studies astronomy, the stars or the physical universe; a scientist whose area of research is… • ASTRONOMER n. a person who is skilled in astronomy or who makes observations of celestial phenomena. |
| ASTRONOMIC | • astronomic adj. Pertaining or relating to astronomy. • astronomic adj. (Figurative) of very large or immense proportions; colossal. • ASTRONOMIC adj. related to astronomy, also ASTRONOMICAL. |
| ASTROPHELS | • Astrophels n. Plural of Astrophel. • ASTROPHEL n. (Spenser) an unidentified bitter starlike plant, possibly aster, also ASTROFELL. |